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| author | Andrew Donnellan <ajd@linux.ibm.com> | 2023-07-14 03:52:38 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-08-18 19:12:32 +0200 |
| commit | efb78fa86e95832b78ca0ba60f3706788a818938 (patch) | |
| tree | 458e235f57b8fc9efacd7db1e3a1ce2645c73cf5 /lib/test_meminit.c | |
| parent | mm/page_ext: move functions around for minor cleanups to page_ext (diff) | |
| download | linux-efb78fa86e95832b78ca0ba60f3706788a818938.tar.xz linux-efb78fa86e95832b78ca0ba60f3706788a818938.zip | |
lib/test_meminit: allocate pages up to order MAX_ORDER
test_pages() tests the page allocator by calling alloc_pages() with
different orders up to order 10.
However, different architectures and platforms support different maximum
contiguous allocation sizes. The default maximum allocation order
(MAX_ORDER) is 10, but architectures can use CONFIG_ARCH_FORCE_MAX_ORDER
to override this. On platforms where this is less than 10, test_meminit()
will blow up with a WARN(). This is expected, so let's not do that.
Replace the hardcoded "10" with the MAX_ORDER macro so that we test
allocations up to the expected platform limit.
Link: https://lkml.kernel.org/r/20230714015238.47931-1-ajd@linux.ibm.com
Fixes: 5015a300a522 ("lib: introduce test_meminit module")
Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Cc: Xiaoke Wang <xkernel.wang@foxmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'lib/test_meminit.c')
| -rw-r--r-- | lib/test_meminit.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/test_meminit.c b/lib/test_meminit.c index 60e1984c060f..0ae35223d773 100644 --- a/lib/test_meminit.c +++ b/lib/test_meminit.c @@ -93,7 +93,7 @@ static int __init test_pages(int *total_failures) int failures = 0, num_tests = 0; int i; - for (i = 0; i < 10; i++) + for (i = 0; i <= MAX_ORDER; i++) num_tests += do_alloc_pages_order(i, &failures); REPORT_FAILURES_IN_FN(); |